jkcam6017

I have been told, that it is going to actually be in the 325 hp range, but with amazing acceleration up to 60 mph.

Jawnathin

Well, considering how worked up people are over 450hp vs 470hp, that extra 20lb-ft would go along way in satisfying some of the hp addicts on the forum.

On a more serious note, while it is 20lb-ft differences in peak, it'll be a bit different throughout the rest of the power band. Doing some rough math, at 6300rpm it looks to be about 50lb-ft. LS7 makes approximately 420lbft vs LT1's 370lbft (according to the chart).

rcallen484

You know that big rock you've been under......

Nitrous Oxide

Yes, the projected weight reduction is an impressive achievement. But are we to believe that the motor department engineers sat idly by?

I don't know how much lighter the engine is. If you're telling me that it's a big factor in the overall weight reduction, then I'll start believing that 450 hp figure a little more, because it would tell me that it's what they focussed on among other things.

Also a member by the name of Flex claims that the 450 HP figure was reached at 5000 RPM. That's exactly what the Z06 does at 5000 RPM. Maybe he was misinformed, I dunno.

Corgidog1

452 hp with 430 torque.

Jawnathin

Pretty sure it was already confirmed by GM that the LT1 weighed more than the LS3.

DREAMERAK

So, you think torque will 20 lbs less than the preliminary figure of 450lbs?

JustinStrife

Phimosis

Going to DFI, auto makers typically yield 10% more power. With the same 2V set up and peak power at 6,000 rpm, they should be able to squeeze 480 hp and 470 lb/ft torque out of it, compared to the current 436 hp and 428 tq.

However, given GM's track record of having more passion for selling cars than for making them, I suspect they will go conservative in the beginning with 455 hp, 445 lb/ft torque and give slow power gains with successive model years to keep bringing new sales in. Then after maxing at 480 hp, they'll bring out a 6.2L DFI Z06 that makes 475 lb/ft torque and 525 hp at 6,500.

Just my educated guesses.

Centex

So from my earlier post - as I stated -I "thought" it was going to be an even 450. However everyone points out (and thanks btw) that the press release said "at least 450" .. or "450+" .... if this is indeed the case, which it sounds like it will be .... if it comes out with 465 hp or better I will definately be getting one sooner than I thought. The other side of the coin is what the weight will be. I know this has been discussed in a previous thread so I will not even go there.... but the bottom line is if they (GM) can get the C7 to be 465-470 HP and be sub 3100 lbs curb weight - that will make for one VERY impressive machine. It would even give a stock c6Z a run for it (I can say that - I have an 08 Z .... so we will just have to wait and see what the actual number are. Bottom line; I am very excited and know that at some point next year a C7 will definately be in my future.

JLinCA

Best answer I have heard

LS1LT1

I do believe that the car has a real good shot at coming in under 3100 pounds for the base manual coupe.
Not sure about the 465-470hp part but even that could possibly happen as well.
Even just 450hp in a 3050 pound package with the right gearing and tire compound will make for some truly stellar overall acceleration.

Nitrous Oxide

Do you think we will get the definitive HP and torque figures on 1-13-13?

Raitzi

Chevrolet can not screw up gearing at least with automatic with eight forward gears.

LS1LT1

Thank you.





There is a chance that they'll want to draw it out or 'milk it' just a little longer, showing the car first and then following up with some 'tech talk' later on to keep the momentum going...but yes I think we might see/hear the final power numbers next week.

esemes

470/460tq

Kappa

460/450.

Just a small bump above prelim numbers. Should be more than enough to take on 991S.

jschindler

I think the GM engineers are reading the forum and after seeing all the folks say "who cares if the car has 20 more hp or not, its all about power to weight and power under the curve" they going to detune it to 410 hp to see if folks really don't care about 20 hp (410 being 20 less than the base C6 has)

Nitrous Oxide

Being a generational change, it's basically a 20 HP bump that must outlast the fierce HP war competition for the next 10 years. Best of luck. Ain't gonna happen.

Daekwan06

LT1
480hp Premium 93
500hp E85

LT4
650hp Premium 93
700hp E85

The compression ratio on the LT1 seems to be fairly high.. which means this car is going to be an octane lover. I believe the E85 hype, but dont expect the 40-80hp bump. Not because its scientifically impossible.. but because there is no reason to put that much HP in the base $55,000 C7. I've been a strong believer that the base C7 should provide C6Z06-like performance.. and 500hp of E85 in a lighter package should be able to accomplish that.

When the LT4 (or whatever Z/supercharged) variant of the LT1 comes along. I expect that engine to put out 650hp off Premium 93. In addition to being capable of the additional 40-80hp boost from using E85 that "BigGunz" was explaining in his tech thread on LS1. It seems that E85 mostly benefits forced induction engines and its a great way make sure the LT4 going into the C7Z06 is capable of producing around 700hp and able to compete with almost any other production "supercar" available this coming generation.

The new $90,000 Viper has 640hp and beats the current ZR1 in 0-60 & 1/4mile. The $300,000 F12 & Aventador already produce 700+hp. Hell even the $60,000 GT500 has 662hp. GM needs to do something to make sure its flagship $85,000 "supercar" is able to equal the flagship "supercar" of other manufacters. Notice I'm talking about "supercars" and not "hypercars" aka the $1million Veyron, F70, McClaren P1, Koenigsegg, Hennessey Venom GT's of the work.